4Clark T, Stephenson T, Pearce P A. Phosphorus removal by chemical precipitation in a biological aerated filter.Wat Res, 1997, 31(10):2557 -2563
5Abeysinghe D H, Shanaleh A, Rigden B. Biofilters for water reuse in aquaculture. Wat Sci Tech, 1996, 34(11) :253 - 260
6Chang W S, Hong S W, Park J, Effect of zeolite media for the treatment of textile wastewater in a biological aerated filter. Process Biochem, 2002, 37:693 -698
7Kent T D, Fitzpatrick C S B, Williams S C. Testing of biological aerated filter (BAF)media, Wat Sci Tech,1996, 34(3 -4) :363 -370
8Tang S R. The technique of modifying calcium bentonite into sodium bentonite. West-China Explor Eng, 1994, 6(5) : 53 -60
9Mann A T, Mendoza-Espinosa L, Stephenson T. Performance of floating and sunken media biological aerated filters under unsteady state conditions. Wat Res, 1999,33(4): 1108-1113